Lordship of Argos and Nauplia

Argos and Nauplia
Lordship in fief of the Principality of Achaea (de facto autonomous)
← 1212–1388 →   →
Arms of the Brienne family
Capital		Nauplia 37°36′N 22°46′E / 37.600°N 22.767°E / 37.600; 22.767Coordinates: 37°36′N 22°46′E / 37.600°N 22.767°E / 37.600; 22.767
Government		Feudal lordship
Historical era		Middle Ages
•	Established	1212
•	Sold to Venice	1388

Arms of the Brienne family

During the late Middle Ages, the two cities of Argos (Greek: Άργος, French: Argues) and Nauplia (modern Nafplion, Ναύπλιον; in the Middle Ages Ἀνάπλι, in French Naples de Romanie) formed a separate lordship within the Frankish-ruled Morea in southern Greece.

Following their conquest in 1211–1212, the cities were granted as a fief to Otto de la Roche, Duke of Athens, by Geoffrey I of Villehardouin, Prince of Achaea. The lordship remained in the possession of the de la Roche and the Brienne Dukes of Athens even after the Catalan conquest of the Duchy of Athens in 1311, and the Brienne line continued to be recognized as Dukes of Athens there. Walter VI of Brienne was largely an absentee lord, spending most of his life in his European domains, and the lordship was inherited by his sixth son, Guy of Enghien. It then passed to his daughter Marie of Enghien when he died in 1376. In 1377, she married Peter Cornaro, who would also reside there until his death in 1388. Shortly after his death, Marie sold the two cities to Venice and retired there, but Argos was seized by the Despot Theodore I Palaiologos, while his ally, Nerio I Acciaioli seized Nauplia. The latter city was soon captured by Venice, but Argos remained in Byzantine hands until 1394, when it too was handed over to Venice.

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